Loose-leaf book



R. G. WHITLOCK. LOOSE LEAF BOOK.

APPLICATION FILED FEB. 16, 1920.

1,430,047, 2 Patented Sept. 26, 1922.

Patented Sept. 26, 1922.

UNITED STATES PATENT OFFICE.

RALPH G. WHITLOCK, OF LOS AN GELES, CALIFORNIA, ASSIGNOR TO E. .D. WHITLQCK AND M. H. WHITLOCK, BOTH OF LOS ANGELES,

CALIFORNIA.

LOOSE-LEAF BOOK.

Application filed February 16, 1920. Serial No. 359,178.

To all whom it may concern:

Be it known that I, RALPH G. WHITLOCK, a citizen of the United States, residing at the city of Los Angeles, county of Los Angeles, State of California, have invented new and useful Improvements in Loose-Leaf Books, of which the following is a specificaption.

My invention is an improvement upon the invention described in my application Number 349,056, filed January 2, 1920 for looseleaf books and relates to improved means for causing the pages to register when closing the book and keeping the pages in register when the book is open or closed.

In the drawings forming part of this application Figure 1 is a plan view of an open book embodying my invention. Figure 2 is a detached leaf. Figure 8 is an end view of the leaf guide and a portion of a pair of half rings and a section of other portions with the cover omitted. Figure 4 is a side view of a fragment of the leaf guide. Figure 5 is a side view of a pair of half rings with other parts in section and the guide bloc-k omitted. Figure 6 is a fragmentary longitudinal section of the means of connecting the ring frame to the cover on the line 66 of Fig. 5. Fig. 7 is a plan of plate 17 before the same is bent for use, one lug being partly broken away.

Referring to the drawings, the cover 10 has secured in the back thereof the back plate 11. which has lugs 12 struck up therefrom and preferably arranged in pairs as best shown in Figure 6. The ring frame consists of the side members 13 and 14 to which are attached the half ring members 15 and 16. At each pair of half ring memhers is a connecting plate 17, the ends of which are slitted and, straddle the half ring members and turn downward and inwardly and form pockets 18 in which the side mem bers have a sliding movement when operated. The edges of plate 17 between these pockets turn downwardly and form plate lugs 19. Lugs 12 and 19 have holes therein which register. Through these holes is passed the connecting rod 20 which secures the ring frame to theback plate which is bound up in the cover when the cover is made. The ends of the side members are connected together by pivots 26. A link bar 27 is rockably mounted at one end on side member 14 and has its other end connected by pivot 28 to bar 29, which bar is rockably secured at one end upon member 13 and has a thumb- 131606 30 at theother end. By lifting up or pushing down on thumb-piece 30 the half ring members can be opened or closed. P vot 28 lies below the horizontal plane of pivots 26 when the half ring members are closed. To cause the sheets to register in their open or closed position I provide each sheet 21 with V-shaped notches 22 in their inner edges. Two notches produce good results but there may be more if desired. EX- tending along plates 17 between the rings when closed is a guide block 23 which is enough smaller than the rings to permit the leaves to turn freely on the rings. Block 23 is secured to plates 17 by screws, one of which 24 is shown in dotted lines in Figure 3 This block is circular except that a sect1on is cut off to make it fit upon plates 17. At the points where the sheets are provided with notches, block 23 has grooves cut therein 111 which are secured registering flanges 25 which enter into the notches in the sheets and keep the sheets in register when the book is opened or closed. Block 23 is of any suitable material. I have found wood is satisfactory. Flanges 25 are preferably of metal.

Having described my invention I claim 1. In a loose leaf book, a ring frame havmg plates provided with depending pierced lugs; a cover having back plate provided with upwardly turned pierced lugs; and a connecting rod passing through said lugs whereby the ring frame and cover are secured together.

2. In a loose leaf book, cover; a plate in the back thereof; ring frame plates adapted to be secured to said cover plate; a flanged guide block secured to said ring plates, said flanges being adapted to enter notchesin a sheet, in combination with a sheet having in its inner edge ring holes and V-shaped notches. I V i In witness that I claim the foregoing I have hereunto subscribed day of Feby, 1920.

RALPH G. WHITLOCK.

my name this 9th 

